How to Login to JIRA, Confluence & Trello and fetch users's data with JS?

[Ghassan nn]

Hi community,

I am currently working on implementing an Internal web-app (NodeJS, ReactJS) which is supposed to allow a user to login (all login credentials are exactly the same for all three Platforms) and display (until now read-only) or fetch the user's data from all three platforms. JIRA & Confluence are both hosted internally (not Cloud).

Any ideas or tips on how to go about implementing such a thing? 

I have read through the documentations but some things seem to be deprecated and the information provided appears to be very conflicting and confusing therefore I would really appreciate any insights on this matter.

Thanks and best regards.

[Yevgen Lasman]

For Atlassian products you can use REST API to gather whatever you need about a user. The major advise is to use OAuth or at least session token, because Basic Auth for the large number of requests will severely impact applications performance.